Journal
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
Volume 16, Issue 4, Pages 441-445Publisher
AMER CHEMICAL SOC
DOI: 10.1016/j.jasms.2004.12.010
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Funding
- NCRR NIH HHS [P41RR10888] Funding Source: Medline
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A minimum thickness gate valve design for mass spectrometry, is described in detail. The ion optics required to transmit ions from the source to the ICR cell are integrated into the design to minimize fringe field effects on the ions as they travel through the gate valve. The total thickness of the complete gate valve assembly is 1.03 in. (26.2 mm) with a maximum fringe field distance of 0.065 in. (1.7 mm). The gate valve is able to maintain a vacuum of < 10(-1)0 mbar at the ICR cell when the source is vented to atmosphere and the estimated ion transfer efficiency is > 95%. (J Am Soc Mass Spectrom 2005,16, 441-445) (c) 2004 American Society for Mass Spectrometry
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